User`s manual

User Manual Version 1.4

SE5001 Ethernet Serial Server

A.3.2 DB9 Pin Assignments

The pin assignments of DB9 connector on SE5001 is shown in the following table:

Pin#

RS-232

Full Duplex

for SE5001-S2 Model

RS-485 2-wire

Half Duplex

for SE5001-S5 Model

RS-422/RS-485 4-wire

Full Duplex

for SE5001-S5 Model

1 DCD N/A N/A

2 RXD N/A

TXD+

3 TXD

DATA+

RXD+

4 DTR N/A N/A

5 SG (Signal Ground) SG (Signal Ground) SG (Signal Ground)

6 DSR N/A N/A

7 RTS

DATA- RXD-

8 CTS N/A

TXD-

9 N/A N/A N/A

A.3.3 Ethernet Port (RJ-45)

1. Category 5 UTP cable, 8 core wire.

2. RJ45 Connector.

3. RJ45 Pin Assignment

Pin Assignment 568A Definition 568B Definition

Pin1 Green-White Orange-White

Pin2 Green Orange

Pin3 Orange-White Green-White

Pin4 Blue Blue

Pin5 Blue-White Blue-White

Pin6 Orange Green

Pin7 Brown-White Brown-White

Pin8 Brown Brown

One can choose either 568A or 568B definition. If one want to make a crossover cable, one should use 568A

and 568B definition respectively in each terminal of a UTP cable.